• Investor Ephraim Gildor has listed his duplex penthouse at the Park Laurel on West 53rd Street for $28 million. The 7,758-square-foot spread includes seven bedrooms, a landscaped terrace, and a library. [NYO, PDE]
• Terence Kawaja, a managing director at GCA Savvian Advisors, has paid $7.235 million for a 15th-floor apartment at 150 East 86th Street. [Cityfile]
• Goldman Sachs executive Raj Sethi has put the apartment at 15 Central Park West that he bought for $4.1 million in December 2007 back on the market. The two-bedroom pad is now listed for $7.1 million. [Cityfile, BHS]